PubMed Health⌕ Search

Biomedical subjects

L Drobnic

Publications and source records attributed to L Drobnic.

At least 19 recordsLinked to original sources
PubMed1997

Management of urinary tract infections: a comprehensive review.

Urinary tract infections (UTI) include a wide range of clinical entities. Starting from this situation, have been differentiated each of the UTI depending on location, age and sex, among other factors. Therefore, UTI have been classified and studied as follows: UTI in women, in men, in elderly people, in catheterized patients and in children. The different pharmacotherapeutic alternatives have been assessed and the classic agents compared with the most recent molecules.

Age Factors↗
PubMed1996

[Fever of unknown origin in patients with human immunodeficiency virus infection. Study of 100 cases].

BACKGROUND: Fever of unknown origin (FUO) has been insufficiently studied in patients infected with HIV. The aim of this study was to determine the incidence, mean hospital stay, etiology, diagnostic methods and clinical course in patients infected with HIV and FUO. METHODS: Descriptive prospective study of patients infected with HIV and with FUO for a period of 24 months (February 1993-February 1995). Out of a total of 1,202 admissions, 100 were prompted by FUO in 95 patients (61 males, 34 women). Sixty-six per cent were parenteral drug abusers or had been so and the mean T CD4+ lymphocyte count was 0.061 x 10(9)/1 +/- 0.075 x 10(9)/1. RESULTS: The incidence of FUO was 8.3 every 100 patients/year. The mean hospital stay was 31.3 +/- 17.8 days, compared with an overall mean stay for HIV-positive patients of 14.6 +/- 8 days (p < 0.001). An etiologic diagnosis was achieved in 90% of cases. Pulmonary or extrapulmonary tuberculosis accounted for approximately 50% of cases, whereas non tuberculous mycobacteria (MAI and M. kansasii) for 20%. The other etiologies (CMV, visceral leishmaniasis, PCP, toxoplasmosis, cryptococcosis, lymphoma) accounted each for less than 5% of diagnoses. In 14 occasions there were two concomitant diagnoses. Mortality rate was 22%, which was higher when two simultaneous diagnosis were present [RR: 3.17 (1.5-6.6)]. In 45% of fatal cases one of the diagnoses went undiagnosed premortem. The highest diagnostic yield was obtained with sputum culture (34.2% of diagnosis) and blood culture (21.5%). CONCLUSIONS: FUO in common in patients infected with HIV, with important health resources consumption associated. The obtention of diagnosis was possible in a high percentage of patients. It is associated with a high hospital mortality rate. The most common diagnoses were tuberculosis and infections by other mycobacteria. It is possible to obtain the diagnosis with non-invasive procedures in 75% of cases.

Female↗
PubMed1993

[Salmonella typhimurium as the causal agent of pulmonary cavitations].

BACKGROUND: Relation between patients with immunosuppression (malignancy, renal transplant) and bacteremia by Salmonella non-typhi, specially by Salmonella typhimurium, is known. This relation has been published for patients who suffer from AIDS, and so Salmonella bacteremia could even begin the clinical disease. But even though the relation between the infection by Salmonella and AIDS is well known, and the pulmonary involvement in them has been told, this etiology as a producing agent of lung cavitation has not much documentation. METHODS: We examined three patients (two women and one man) suffering from fever of one week of duration, cough, expectoration and thoracic pain in two of them. The third patient had fever and cachexia without clinical symptoms. The man and the two women had a blood count with neutrophilia and leucocytosis in two cases and leucopenia in the other one. All of them suffered a very important depression of cell immunity (CD4 of 140, 70 and 4, respectively) and positive blood cultures for Salmonella typhimurium. RESULTS: Chest X-Ray showed, in all the cases, pulmonary cavities. CONCLUSIONS: Salmonella typhimurium must be included among the agents that can produce pulmonary cavities like Staphylococcus aureus, mycobacteria, fungus and other gram-negative bacilli.

AIDS-Related Opportunistic Infections↗
PubMed1992

[Sepsis caused by Mycobacterium tuberculosis in patients with AIDS].

BACKGROUND: Techniques for detecting mycobacteria in blood can be a good alternative for diagnosing tuberculosis in acquired-immunodeficiency syndrome patients (AIDS). PATIENTS AND METHODS: Eleven patients with AIDS and pulmonary tuberculosis, and four controls with AIDS and without tuberculosis were studied. The diagnosis of mycobacteremia was made by the identification of the microorganisms in blood. The method used was a lysis-centrifugation with subsequent stain or culture identification in different media (agar Löwenstein-Jensen, M7H9, M7H11, brain-heart infusion and Sauton broth). RESULTS: In one case, direct staining of sample was positive. The culture results were positive in all 11 patients with tuberculosis and in none of the controls. M7H11 was the media that allows the fastest detection. CONCLUSIONS: This technique can be a good alternative method for tuberculosis diagnosis in AIDS patients. Is easy to perform, relatively fast an with diagnostic performance. It also could be of interest in extra-pulmonary tuberculosis.

Acquired Immunodeficiency Syndrome↗
PubMed1991

[Digestive manifestations and metabolic acidosis secondary to intravenous administration of cotrimoxazol].

BACKGROUND: Digestive features and metabolic acidosis have been observed in patients with Pneumocystis carinii pneumonia treated with intravenous high dose co-trimoxazole. METHODS: To evaluate this phenomenon, a retrospective study of 22 patients (group A) and a prospective study of 12 patients (group B) were carried out. Group B patients were investigated following a protocol lasting for the 21 days of treatment. RESULTS: Metabolic acidosis developed in 23 (67%) of the overall number of study patients, and it was associated with digestive features such as nausea, vomiting and epigastralgia in 12. One patient had digestive features without metabolic acidosis. Metabolic acidosis developed early, between the days 4 and 7 of administration of the drug. The mean value of bicarbonate at the onset of therapy was 24,55 mEq; the mean value in the patients with metabolic acidosis was 16,43 mEq. The overall mean value of base excess at the onset of therapy was -2,39, and it was -8,46 in the patients who developed metabolic acidosis. CONCLUSIONS: As in all patients other causes of metabolic acidosis were ruled out, it became obvious that intravenous co-trimoxazole was directly related to the development of digestive features and metabolic acidosis, which disappeared with bicarbonate administration or with cessation of therapy.

Acidosis↗
PubMed1990

[Bacteremia of cutaneous origin].

558 episodes of bacteremia were detected in our medical center during a 2-year period. 17 of them (3%) were of cutaneous origin. 12 cases were community-acquired and 5 were hospital-acquired. The patients median age was of 65 years. 15 patients had a baseline disease, the most frequent being diabetes mellitus and neoplastic disease. The most common bacteria isolated were group A beta-hemolytic Streptococcus, Staphylococcus aureus, and Escherichia coli; 2 patients had multibacterial episodes. Decubitus ulcer and cellulitis were the most frequently associated skin disease. Global mortality was of 47% and was sepsis related in 29% of the cases. Death prognosis factors were old age, diabetes mellitus, gram-negative causal bacteria, nonappropriate antibiotic therapy, low index of clinical suspicion.

Adult↗
PubMed1989

[Incidence of nosocomial infections. Comparison of 2 surveillance systems: clinical vs microbiological follow-up].

The effectiveness of a clinical and a microbiological follow-up systems for the detection of hospital-acquired infection (HI), both independently and simultaneously applied, were prospectively evaluated. The observed incidence rate was 11.4%. The clinical follow-up detected 81.3% of HI while microbiological follow-up detected 59.7%. This difference was statistically significant (p less than 0.001). It took 43 and 45 minutes to detect each instance of HI with the clinical and microbiological methods, respectively. Clinical methods are the most adequate to obtain maximal sensitivity in the overall surveillance of hospital-acquired infection, whereas microbiological follow-up may be useful for the detection of some types of HI such as bacteremia or urinary tract infection.

Cohort Studies↗
PubMed1989

[Epidemiologic and therapeutic aspects of bacteremic infections of the urinary tract].

A survey was carried out of all urinary tract infections which developed bacteremia during an 18 month period. The number of episodes of bacteremia of urinary origin (BUO) detected in our institution during that period was 108. The urinary tract was the most common origin of the cases of community acquired (CA) bacteremia and the third in the hospital acquired (HA) cases. In both types, the most frequent organism was E. coli (69.6% and 40%, respectively). The most common underlying diseases were diabetes mellitus (25.7%) and neoplasia (20%); nephrourologic disorders of some type were present in 29.6% of cases. In 81% of HA episodes there were urinary catheters as risk factors. In the CA bacteremias, the gram-negative bacilli except Pseudomonas aeruginosa had a 100% sensitivity to aminoglycosides. Sensitivity to first generation cephalosporins was detected in 81% of the E. coli and in 100% of the Klebsiella spp strains. In HA cases, amikacin (100% of E. coli, Pseudomonas, Klebsiella and Proteus) and cefotaxime (except Pseudomonas) were the antibiotics to which the highest rates of sensitivity were found. Overall mortality rate of BUO was 16.6% (13.6% for CA and 21.5% for HA); in 6% and 5% of cases, respectively, death was directly associated with bacteremia.

Cross Infection↗